RENO, Nev. — A member of the Hells Angels motorcycle gang accepted a plea deal Monday, just as he and a member of a rival gang were about to go on trial for murder charges stemming from a 2011 shootout at a northern Nevada casino.

Cesar Villagrana, 38, of Gilroy, Calif., pleaded guilty in Washoe District Court to one count of battery with a deadly weapon and one count of challenge to fight with a deadly weapon resulting in death.

He faces up to 15 years in prison and a $15,000 fine at sentencing, which Judge Connie Steinheimer set for Sept. 4.

Villagrana originally faced up to life in prison on second-degree murder and other charges for shooting a Vagos member in the leg.

The surprise plea deal postponed court proceedings, but jury selection began Monday afternoon for Ernesto Gonzalez of San Francisco, the lone suspected gunman still facing charges in the Sept. 23, 2011, shooting on a busy casino floor at John Ascuaga's Nugget in Sparks.

Gonzalez, 55, former president of the Vagos' Nicaraguan chapter, is accused of killing Jeffrey "Jethro" Pettigrew, who was the president of the Hells Angels' chapter in San Jose, Calif. He faces murder, conspiracy and other charges.

Gonzalez has been jailed since authorities say he was found hiding in a car on the downtown campus of the University of San Francisco in the days after the shooting. He told campus officers he was terrified someone was after him.

For the first time since his arrest, Gonzalez appeared in court Monday in a dark blue suit and tie instead of a jail jumpsuit. He entered his plea after the judge accepted Villagrana's plea deal.

"Definitely not guilty," Gonzalez told the judge.

David Houston, Gonzalez's lead attorney, said Villagrana's guilty plea was an "appropriate development."

"We're not pleading, because our client is innocent," Houston told The Associated Press.

Karl Hall, Washoe County's chief deputy district attorney, declined to comment in detail on Villagrana's plea agreement but told the AP, "I wouldn't have done it if I didn't think it was fair."

Villagrana was accompanying Pettigrew at an annual motorcycle rally in Reno-Sparks that attracted both gangs to the hotel-casino where the melee broke out. Prosecutors said they have security video of Villagrana shooting a Vagos member in the leg.

David Chesnoff, Villagrana's lead lawyer, told reporters after the judge accepted the plea deal that Villagrana was "sorry things turned out the way they did."

"He wasn't intending having these events occur," Chesnoff told KRNV-TV. "He lost his best friend, and that's a big deal to him."

Another Vagos member who police blamed for starting the fight that led to the killing pleaded guilty in March to second-degree murder. Sentencing is set for Aug. 22 for Gary Rudnick, former vice president of the Vagos' chapter in Los Angeles.

In court Monday, 65 five jurors were called only to be told they had to fill out an additional questionnaire regarding their background and opinions on certain things. Additional jurors later went through the same procedure and were told to return Tuesday when the lawyers would get a chance to question them in detail.

The judge earlier granted the prosecution's request to keep secret the names and other information about all potential jurors, referring to them only by their juror number.

Hall said the extra precaution was needed because the suspects allegedly are members of "outlaw motorcycle gangs consisting of thousands of members worldwide."

"The potential for placing a juror or witness in danger is great," he said.

Poor seamanship and flaws in keeping watch contributed to a collision between a Navy destroyer and a commercial container ship that killed seven sailors, Navy officials said, announcing that the warship captain will be relieved of command and more than a dozen other sailors will be punished.

Gunnar Birkerts, an internationally acclaimed modernist architect who designed buildings including the Federal Reserve Bank in Minneapolis, the Corning Museum of Glass in Corning, New York, and the University of Michigan Law Library, has died. He was 92.

On the floor of the Honda Center, the USA Gymnastics championships are imbued with a sense of normalcy and routine. Of tumbling runs and coaching tweaks. Of blaring music and chalk dust. Of leaps and leotards. Of the search for who's next.